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<div class="title">dwarfparser.cpp</div>  </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;</div><div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="dwarf_parser_8h.html">dwarfParser.h</a>&quot;</span></div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="dwarf_tree_obj_8h.html">dwarfTreeObj.h</a>&quot;</span></div><div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="preprocessor">#include &quot;libs/libelfin/elf/elf++.hh&quot;</span></div><div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;</div><div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="preprocessor">#include &lt;fcntl.h&gt;</span></div><div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="preprocessor">#include &lt;map&gt;</span></div><div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="preprocessor">#include &lt;iostream&gt;</span></div><div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="preprocessor">#include &lt;fstream&gt;</span></div><div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="preprocessor">#include &lt;sstream&gt;</span></div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="preprocessor">#include &lt;regex&gt;</span></div><div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;</div><div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="preprocessor">#include &lt;vector&gt;</span></div><div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;</div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="preprocessor">#include &lt;unordered_set&gt;</span></div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;</div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;</div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;DwarfParser::DwarfParser() {</div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;</div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;}</div><div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;</div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;DwarfParser::DwarfParser(<span class="keyword">const</span> <span class="keywordtype">string</span>&amp; elfFilePathName) : elfFilePathName(elfFilePathName) {</div><div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;}</div><div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;</div><div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;</div><div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;<span class="keywordtype">void</span> DwarfParser::parse() {</div><div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;    <span class="keywordtype">int</span> elfFile = open(elfFilePathName.data(), O_RDONLY);</div><div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;    elf::elf ef(elf::create_mmap_loader(elfFile));</div><div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;    dwarf::dwarf dw(dwarf::elf::create_loader(ef));</div><div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;</div><div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;    <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span>&amp; cu : dw.compilation_units()) {</div><div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;        resolveVariables(cu.root(), <span class="keyword">true</span>);</div><div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;    }</div><div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;</div><div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;</div><div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;    <span class="keywordflow">for</span>(<span class="keyword">auto</span> &amp;dwarfTreeElement : dwarfTree) {</div><div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;        lookupStructElementsInDwarfTree(*dwarfTreeElement.second, dwarfTreeElement.first, 0);</div><div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;    }</div><div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;}</div><div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;</div><div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;<span class="keywordtype">void</span> DwarfParser::resolveVariables(<span class="keyword">const</span> dwarf::die&amp; node, <span class="keywordtype">bool</span> isParentNodeSubprogram) {</div><div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;    uint64_t sectionOffset = node.get_section_offset();</div><div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;</div><div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;    <span class="keywordflow">if</span>(node.tag == dwarf::DW_TAG::subprogram) {</div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;        isParentNodeSubprogram = <span class="keyword">true</span>;</div><div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;    } <span class="keywordflow">else</span> <span class="keywordflow">if</span>(node.tag == dwarf::DW_TAG::compile_unit) {</div><div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;        isParentNodeSubprogram = <span class="keyword">false</span>;</div><div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;    }</div><div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;</div><div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;</div><div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;    <span class="keywordflow">if</span>(!isParentNodeSubprogram) { <span class="comment">//ignore local variables from methods/functions</span></div><div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;        <span class="keywordflow">if</span>(node.tag == dwarf::DW_TAG::compile_unit) {</div><div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;            lookupSrcPathCompileUnit(node);</div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;        } <span class="keywordflow">else</span> <span class="keywordflow">if</span>(node.tag == dwarf::DW_TAG::structure_type) {</div><div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;            lookupStructs(node);</div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;        } <span class="keywordflow">else</span> <span class="keywordflow">if</span>((node.tag == dwarf::DW_TAG::variable) || (node.tag == dwarf::DW_TAG::member)) {</div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;            <span class="keywordflow">if</span>(isVariableLocationValid(node) || (node.tag == dwarf::DW_TAG::member)) {  <span class="comment">//@TODO refactor code (gcc 4.6 and gcc 4.9 compliance)</span></div><div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;                shared_ptr&lt;DwarfTreeObj&gt; dwarfTreeObj = std::make_shared&lt;DwarfTreeObj&gt;();</div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;                dwarfTreeObj-&gt;setTag(to_string(node.tag));</div><div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;                addInfoToDwarfTreeObj(node, *dwarfTreeObj);</div><div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;                addDwarfTreeObjToMap(sectionOffset, dwarfTreeObj);</div><div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;            }</div><div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;        }</div><div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;    }</div><div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;</div><div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;    <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span>&amp; child : node) {</div><div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;        resolveVariables(child, isParentNodeSubprogram);</div><div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;    }</div><div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;}</div><div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;</div><div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;<span class="keywordtype">bool</span> DwarfParser::isVariableLocationValid(<span class="keyword">const</span> dwarf::die &amp;node) {</div><div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;    <span class="keyword">static</span> <span class="keyword">const</span> dwarf::value::type exprLoc = dwarf::value::type::exprloc;</div><div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;</div><div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;    dwarf::value::type valueVariable = node.resolve(dwarf::DW_AT::location).get_type();</div><div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;    dwarf::value::type valueStruct = node.resolve(dwarf::DW_AT::data_member_location).get_type();</div><div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;    <span class="keywordflow">return</span> (valueVariable == exprLoc || valueStruct == exprLoc) ? <span class="keyword">true</span> : <span class="keyword">false</span>;</div><div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;}</div><div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;</div><div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;</div><div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;</div><div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;<span class="keywordtype">void</span> DwarfParser::lookupSrcPathCompileUnit(<span class="keyword">const</span> dwarf::die&amp; node) {</div><div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;    <span class="keywordtype">string</span> dir, src;</div><div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;    <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span> &amp;attr : node.attributes()) {</div><div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;        dwarf::DW_AT attributeName = attr.first;</div><div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;        <span class="keywordtype">string</span> value = to_string(attr.second);</div><div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;</div><div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;        <span class="keywordflow">if</span>(attributeName == dwarf::DW_AT::name) {</div><div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;            src = value;</div><div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;        }</div><div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;        <span class="keywordflow">if</span>(attributeName == dwarf::DW_AT::comp_dir) {</div><div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;            dir = value;</div><div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;        }</div><div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;    }</div><div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;    std::stringstream ss;</div><div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;    ss &lt;&lt; std::regex_replace(dir, std::regex(R<span class="stringliteral">&quot;(\\+)&quot;), </span><span class="stringliteral">&quot;/&quot;</span> ) &lt;&lt; <span class="stringliteral">&quot;/&quot;</span> &lt;&lt; src;</div><div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;    srcPathCompileUnitLast = ss.str();</div><div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;}</div><div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;</div><div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;<span class="keywordtype">void</span> DwarfParser::lookupStructs(<span class="keyword">const</span> dwarf::die&amp; node) {</div><div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;    <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span>&amp; attr : node.attributes()) {</div><div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;        dwarf::DW_AT attributeName = attr.first;</div><div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;        <span class="keywordtype">string</span> value = to_string(attr.second);</div><div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;</div><div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;        <span class="keywordflow">if</span>(attributeName == dwarf::DW_AT::name) {</div><div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;            structNameLast = value;</div><div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;            <span class="keywordflow">break</span>;</div><div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;        }</div><div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;    }</div><div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;}</div><div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;</div><div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;</div><div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;<span class="keyword">static</span> <span class="keywordtype">bool</span> isStructDepthLevelZero(<span class="keyword">const</span> <a class="code" href="class_dwarf_tree_obj.html">DwarfTreeObj</a> &amp;dwarf) {</div><div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;    <span class="keywordflow">return</span> (dwarf.getAbsType() == AbstractType::Struct &amp;&amp; (dwarf.getTag().compare(<span class="stringliteral">&quot;DW_TAG_variable&quot;</span>) == 0));</div><div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;}</div><div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;</div><div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;<span class="keyword">static</span> <span class="keywordtype">bool</span> isOutOfScope(<span class="keyword">const</span> <span class="keywordtype">string</span> &amp;srcFileParent, <span class="keyword">const</span> <span class="keywordtype">string</span> &amp;srcFileChild) {</div><div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;    <span class="keywordflow">return</span> (srcFileParent.compare(srcFileChild) != 0);</div><div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;}</div><div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;</div><div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;<span class="keyword">static</span> <span class="keywordtype">bool</span> isStructChildValid(<span class="keyword">const</span> <a class="code" href="class_dwarf_tree_obj.html">DwarfTreeObj</a> &amp;dwarfChild) {</div><div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;    <span class="keywordflow">return</span>  ((dwarfChild.getTag().compare(<span class="stringliteral">&quot;DW_TAG_member&quot;</span>) == 0) &amp;&amp; dwarfChild.getAbsType() != AbstractType::Pointer);</div><div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;}</div><div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;</div><div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;<span class="keyword">static</span> <span class="keywordtype">bool</span> isChildOfParentStruct(<span class="keyword">const</span> <span class="keywordtype">string</span> &amp;parentDataType, <span class="keyword">const</span> <span class="keywordtype">string</span> &amp;childParentStructName) {</div><div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;    <span class="keywordflow">return</span> (parentDataType.compare(childParentStructName) == 0);</div><div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;}</div><div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;</div><div class="line"><a name="l00137"></a><span class="lineno"><a class="line" href="class_dwarf_parser.html#aa18551303cc72fe3eeb52ef00b8c482d">  137</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="class_dwarf_parser.html#aa18551303cc72fe3eeb52ef00b8c482d">DwarfParser::lookupStructElementsInDwarfTree</a>(<a class="code" href="class_dwarf_tree_obj.html">DwarfTreeObj</a> &amp;dwarf, uint64_t dwarfKey,  <span class="keywordtype">int</span> depth) {</div><div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;</div><div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;    <span class="keywordflow">if</span>(isStructDepthLevelZero(dwarf) || depth &gt; 0) {</div><div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;        <span class="keywordtype">string</span> parentDataType = dwarf.getDataType().first;</div><div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;        <span class="keywordtype">string</span> srcFileParent = dwarf.getSourcePath();</div><div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;</div><div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;        <span class="keywordflow">if</span>(parentDataType.size() &gt; 0) {</div><div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;            map&lt;uint64_t, shared_ptr&lt;DwarfTreeObj&gt;&gt;::reverse_iterator itRevDwarfTreeElement(dwarfTree.find(dwarfKey));</div><div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;            vector&lt;uint64_t&gt; dwarfStructKeys;</div><div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;            <span class="keywordflow">for</span> (<span class="keyword">auto</span> &amp;it = itRevDwarfTreeElement; it != dwarfTree.rend(); ++it) {</div><div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;                shared_ptr&lt;DwarfTreeObj&gt; dwarfChild = it-&gt;second;</div><div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;</div><div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;                <span class="keywordflow">if</span>((isChildOfParentStruct(parentDataType, dwarfChild-&gt;getStructName())) &amp;&amp; isStructChildValid(*dwarfChild)) {</div><div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;                    uint64_t key = it-&gt;first;</div><div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;                    dwarfStructKeys.push_back(key);</div><div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;</div><div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;                    <span class="keywordflow">if</span>(dwarfChild-&gt;getAbsType() == AbstractType::Struct) {</div><div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;                        <span class="keywordflow">if</span>(depth &lt;= STRUCT_MEMBER_SEARCH_DEPTH_MAX) {</div><div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;                            lookupStructElementsInDwarfTree(*dwarfChild, key, ++depth);</div><div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;                        }</div><div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;                    }</div><div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;                }</div><div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;</div><div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;                <span class="keywordflow">if</span>(isOutOfScope(srcFileParent, dwarfChild-&gt;getSourcePath())) {</div><div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;                    <span class="keywordflow">break</span>;</div><div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;                }</div><div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;            }</div><div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;            addStructElementsToStruct(dwarf, dwarfStructKeys);</div><div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;        }</div><div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;    }</div><div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;}</div><div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;</div><div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;<span class="keywordtype">void</span> DwarfParser::addStructElementsToStruct(<a class="code" href="class_dwarf_tree_obj.html">DwarfTreeObj</a> &amp;dwarfStruct,vector&lt;uint64_t&gt; &amp;dwarfStructKeys) {</div><div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;    uint64_t baseAddr = dwarfStruct.getAddr();</div><div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;    uint32_t offset = 0;</div><div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;    <span class="keywordflow">for</span>(vector&lt;uint64_t&gt;::reverse_iterator it = dwarfStructKeys.rbegin(); it != dwarfStructKeys.rend(); ++it) { <span class="comment">//set element to correct position</span></div><div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;        shared_ptr&lt;DwarfTreeObj&gt; dwarfChild = dwarfTree.at(*it);</div><div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;        vector&lt;uint64_t&gt; keysChild = dwarfChild-&gt;getStructElementsMapKey();</div><div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;</div><div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;        dwarfChild-&gt;setAddr(baseAddr+offset);</div><div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;        dwarfStruct.setStructElementsMapKey(*it);</div><div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;        offset += dwarfChild-&gt;getDataType().second;</div><div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;</div><div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;    }</div><div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;}</div><div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160;</div><div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160;<span class="keywordtype">void</span> DwarfParser::addInfoToDwarfTreeObj(<span class="keyword">const</span> dwarf::die&amp; node, <a class="code" href="class_dwarf_tree_obj.html">DwarfTreeObj</a>&amp; dwarfTreeObj) {</div><div class="line"><a name="l00184"></a><span class="lineno">  184</span>&#160;    <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span> &amp;attr : node.attributes()) {</div><div class="line"><a name="l00185"></a><span class="lineno">  185</span>&#160;        dwarf::DW_AT attributeName = attr.first;</div><div class="line"><a name="l00186"></a><span class="lineno">  186</span>&#160;        <span class="keywordtype">string</span> value = to_string(attr.second);</div><div class="line"><a name="l00187"></a><span class="lineno">  187</span>&#160;</div><div class="line"><a name="l00188"></a><span class="lineno">  188</span>&#160;        <span class="keywordflow">if</span>(attributeName == dwarf::DW_AT::name) {</div><div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;            dwarfTreeObj.setAttributeName(value);</div><div class="line"><a name="l00190"></a><span class="lineno">  190</span>&#160;        }</div><div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160;        <span class="keywordflow">if</span>(attributeName == dwarf::DW_AT::decl_file) {</div><div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160;            dwarfTreeObj.setSourcePath(srcPathCompileUnitLast);</div><div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160;        }</div><div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160;        <span class="keywordflow">if</span>(attributeName == dwarf::DW_AT::decl_line) {</div><div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160;            dwarfTreeObj.setDeclLine(stringHexToDec(value));</div><div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160;        }</div><div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160;        <span class="keywordflow">if</span>(attributeName == dwarf::DW_AT::type) {</div><div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;            dwarfTreeObj.setDataType(lookupDataType(node));</div><div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;        }</div><div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160;    }</div><div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160;</div><div class="line"><a name="l00202"></a><span class="lineno">  202</span>&#160;    <span class="keywordflow">if</span>(node.tag == dwarf::DW_TAG::member) {</div><div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;        AbstractType absType = lookupAbstractTypeForVariable(node);</div><div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;        dwarfTreeObj.setAbsType(absType);</div><div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160;        dwarfTreeObj.setStructName(structNameLast);</div><div class="line"><a name="l00206"></a><span class="lineno">  206</span>&#160;    } <span class="keywordflow">else</span> <span class="keywordflow">if</span>(node.tag == dwarf::DW_TAG::variable) {</div><div class="line"><a name="l00207"></a><span class="lineno">  207</span>&#160;        AbstractType absType = lookupAbstractTypeForVariable(node);</div><div class="line"><a name="l00208"></a><span class="lineno">  208</span>&#160;        dwarfTreeObj.setAbsType(absType);</div><div class="line"><a name="l00209"></a><span class="lineno">  209</span>&#160;        dwarfTreeObj.setAddr(lookupAddrOfVariable(node, absType));</div><div class="line"><a name="l00210"></a><span class="lineno">  210</span>&#160;    }</div><div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160;</div><div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;}</div><div class="line"><a name="l00213"></a><span class="lineno">  213</span>&#160;</div><div class="line"><a name="l00214"></a><span class="lineno">  214</span>&#160;std::pair&lt;string, uint32_t&gt; DwarfParser::lookupDataType(<span class="keyword">const</span> dwarf::die&amp; node) {</div><div class="line"><a name="l00215"></a><span class="lineno">  215</span>&#160;    <span class="keywordtype">string</span> name;</div><div class="line"><a name="l00216"></a><span class="lineno">  216</span>&#160;    uint32_t byteSize = 0;</div><div class="line"><a name="l00217"></a><span class="lineno">  217</span>&#160;    std::pair &lt;string, uint32_t&gt; ret;</div><div class="line"><a name="l00218"></a><span class="lineno">  218</span>&#160;</div><div class="line"><a name="l00219"></a><span class="lineno">  219</span>&#160;    dwarf::value value = node.resolve(dwarf::DW_AT::type);</div><div class="line"><a name="l00220"></a><span class="lineno">  220</span>&#160;    <span class="keywordflow">if</span>(value.valid()) {</div><div class="line"><a name="l00221"></a><span class="lineno">  221</span>&#160;        dwarf::die nodeChild = value.as_reference();</div><div class="line"><a name="l00222"></a><span class="lineno">  222</span>&#160;</div><div class="line"><a name="l00223"></a><span class="lineno">  223</span>&#160;        <span class="keywordflow">if</span>((nodeChild.tag == dwarf::DW_TAG::base_type) || (nodeChild.tag == dwarf::DW_TAG::structure_type)) {</div><div class="line"><a name="l00224"></a><span class="lineno">  224</span>&#160;            <span class="keywordflow">for</span>(<span class="keyword">auto</span> &amp;attr : nodeChild.attributes()) {</div><div class="line"><a name="l00225"></a><span class="lineno">  225</span>&#160;                dwarf::DW_AT attributeName = attr.first;</div><div class="line"><a name="l00226"></a><span class="lineno">  226</span>&#160;                <span class="keywordtype">string</span> value = to_string(attr.second);</div><div class="line"><a name="l00227"></a><span class="lineno">  227</span>&#160;                <span class="keywordflow">if</span>(attributeName == dwarf::DW_AT::name) {</div><div class="line"><a name="l00228"></a><span class="lineno">  228</span>&#160;                    name = value;</div><div class="line"><a name="l00229"></a><span class="lineno">  229</span>&#160;                }</div><div class="line"><a name="l00230"></a><span class="lineno">  230</span>&#160;                <span class="keywordflow">if</span>(attributeName == dwarf::DW_AT::byte_size) {</div><div class="line"><a name="l00231"></a><span class="lineno">  231</span>&#160;                    byteSize = stringHexToDec(value);</div><div class="line"><a name="l00232"></a><span class="lineno">  232</span>&#160;                }</div><div class="line"><a name="l00233"></a><span class="lineno">  233</span>&#160;            }</div><div class="line"><a name="l00234"></a><span class="lineno">  234</span>&#160;            ret = std::make_pair(name, byteSize);</div><div class="line"><a name="l00235"></a><span class="lineno">  235</span>&#160;        } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00236"></a><span class="lineno">  236</span>&#160;            ret = lookupDataType(nodeChild);</div><div class="line"><a name="l00237"></a><span class="lineno">  237</span>&#160;        }</div><div class="line"><a name="l00238"></a><span class="lineno">  238</span>&#160;    }</div><div class="line"><a name="l00239"></a><span class="lineno">  239</span>&#160;    <span class="keywordflow">return</span>  ret;</div><div class="line"><a name="l00240"></a><span class="lineno">  240</span>&#160;}</div><div class="line"><a name="l00241"></a><span class="lineno">  241</span>&#160;</div><div class="line"><a name="l00242"></a><span class="lineno">  242</span>&#160;AbstractType DwarfParser::lookupAbstractTypeForVariable(<span class="keyword">const</span> dwarf::die&amp; node) {</div><div class="line"><a name="l00243"></a><span class="lineno">  243</span>&#160;    AbstractType retType = AbstractType::NotFound;</div><div class="line"><a name="l00244"></a><span class="lineno">  244</span>&#160;</div><div class="line"><a name="l00245"></a><span class="lineno">  245</span>&#160;    dwarf::value value = node.resolve(dwarf::DW_AT::type);</div><div class="line"><a name="l00246"></a><span class="lineno">  246</span>&#160;    <span class="keywordflow">if</span>(value.valid()) {</div><div class="line"><a name="l00247"></a><span class="lineno">  247</span>&#160;        dwarf::die nodeChild = value.as_reference();</div><div class="line"><a name="l00248"></a><span class="lineno">  248</span>&#160;</div><div class="line"><a name="l00249"></a><span class="lineno">  249</span>&#160;        <span class="keywordflow">if</span>(nodeChild.tag == dwarf::DW_TAG::array_type) {</div><div class="line"><a name="l00250"></a><span class="lineno">  250</span>&#160;            retType = AbstractType::Array;</div><div class="line"><a name="l00251"></a><span class="lineno">  251</span>&#160;        } <span class="keywordflow">else</span> <span class="keywordflow">if</span>(nodeChild.tag == dwarf::DW_TAG::structure_type) {</div><div class="line"><a name="l00252"></a><span class="lineno">  252</span>&#160;            retType = AbstractType::Struct;</div><div class="line"><a name="l00253"></a><span class="lineno">  253</span>&#160;        } <span class="keywordflow">else</span> <span class="keywordflow">if</span>(nodeChild.tag == dwarf::DW_TAG::pointer_type) {</div><div class="line"><a name="l00254"></a><span class="lineno">  254</span>&#160;            retType = AbstractType::Pointer;</div><div class="line"><a name="l00255"></a><span class="lineno">  255</span>&#160;        } <span class="keywordflow">else</span> <span class="keywordflow">if</span>(nodeChild.tag == dwarf::DW_TAG::base_type) {</div><div class="line"><a name="l00256"></a><span class="lineno">  256</span>&#160;            retType = AbstractType::Variable;</div><div class="line"><a name="l00257"></a><span class="lineno">  257</span>&#160;        } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00258"></a><span class="lineno">  258</span>&#160;            retType = lookupAbstractTypeForVariable(nodeChild);</div><div class="line"><a name="l00259"></a><span class="lineno">  259</span>&#160;        }</div><div class="line"><a name="l00260"></a><span class="lineno">  260</span>&#160;    }</div><div class="line"><a name="l00261"></a><span class="lineno">  261</span>&#160;    <span class="keywordflow">return</span>  retType;</div><div class="line"><a name="l00262"></a><span class="lineno">  262</span>&#160;}</div><div class="line"><a name="l00263"></a><span class="lineno">  263</span>&#160;</div><div class="line"><a name="l00264"></a><span class="lineno">  264</span>&#160;uint64_t DwarfParser::lookupAddrOfVariable(<span class="keyword">const</span> dwarf::die &amp;node, AbstractType absType) {</div><div class="line"><a name="l00265"></a><span class="lineno">  265</span>&#160;    uint64_t addr = 0;</div><div class="line"><a name="l00266"></a><span class="lineno">  266</span>&#160;    <span class="keywordflow">if</span> ((node.tag == dwarf::DW_TAG::variable) &amp;&amp; (absType != AbstractType::Pointer)) { <span class="comment">//dwarf library does not support pointers yet</span></div><div class="line"><a name="l00267"></a><span class="lineno">  267</span>&#160;        dwarf::value location = node.resolve(dwarf::DW_AT::location);</div><div class="line"><a name="l00268"></a><span class="lineno">  268</span>&#160;</div><div class="line"><a name="l00269"></a><span class="lineno">  269</span>&#160;        <span class="keywordflow">if</span> (isVariableLocationValid(node)) {</div><div class="line"><a name="l00270"></a><span class="lineno">  270</span>&#160;            <span class="keywordflow">try</span> {</div><div class="line"><a name="l00271"></a><span class="lineno">  271</span>&#160;                dwarf::expr_result result = location.as_exprloc().evaluate(&amp;dwarf::no_expr_context);</div><div class="line"><a name="l00272"></a><span class="lineno">  272</span>&#160;                addr = result.value;</div><div class="line"><a name="l00273"></a><span class="lineno">  273</span>&#160;            } <span class="keywordflow">catch</span>(dwarf::expr_error&amp; caught) {</div><div class="line"><a name="l00274"></a><span class="lineno">  274</span>&#160;                std::cout &lt;&lt; <span class="stringliteral">&quot;Error lookupAddrOfVariable(): &quot;</span> &lt;&lt; caught.what() &lt;&lt; std::endl;</div><div class="line"><a name="l00275"></a><span class="lineno">  275</span>&#160;            }</div><div class="line"><a name="l00276"></a><span class="lineno">  276</span>&#160;        }</div><div class="line"><a name="l00277"></a><span class="lineno">  277</span>&#160;    }</div><div class="line"><a name="l00278"></a><span class="lineno">  278</span>&#160;    <span class="keywordflow">return</span> addr;</div><div class="line"><a name="l00279"></a><span class="lineno">  279</span>&#160;}</div><div class="line"><a name="l00280"></a><span class="lineno">  280</span>&#160;</div><div class="line"><a name="l00281"></a><span class="lineno">  281</span>&#160;<span class="keywordtype">void</span> DwarfParser::addDwarfTreeObjToMap(uint64_t key, shared_ptr&lt;DwarfTreeObj&gt; dwarfTreeObj) {</div><div class="line"><a name="l00282"></a><span class="lineno">  282</span>&#160;    <span class="keywordtype">size_t</span> sizeName = dwarfTreeObj-&gt;getAttributeName().size();</div><div class="line"><a name="l00283"></a><span class="lineno">  283</span>&#160;    AbstractType absType = dwarfTreeObj-&gt;getAbsType();</div><div class="line"><a name="l00284"></a><span class="lineno">  284</span>&#160;</div><div class="line"><a name="l00285"></a><span class="lineno">  285</span>&#160;    <span class="keywordflow">if</span>((sizeName &gt; 0) &amp;&amp; (absType != AbstractType::NotFound)) {</div><div class="line"><a name="l00286"></a><span class="lineno">  286</span>&#160;        dwarfTree.insert(std::make_pair(key, dwarfTreeObj));</div><div class="line"><a name="l00287"></a><span class="lineno">  287</span>&#160;    }</div><div class="line"><a name="l00288"></a><span class="lineno">  288</span>&#160;}</div><div class="line"><a name="l00289"></a><span class="lineno">  289</span>&#160;</div><div class="line"><a name="l00290"></a><span class="lineno">  290</span>&#160;<span class="comment">/**************************************************************</span></div><div class="line"><a name="l00291"></a><span class="lineno">  291</span>&#160;<span class="comment"> *  Utility</span></div><div class="line"><a name="l00292"></a><span class="lineno">  292</span>&#160;<span class="comment"> * ***********************************************************/</span></div><div class="line"><a name="l00293"></a><span class="lineno">  293</span>&#160;uint32_t DwarfParser::stringHexToDec(<span class="keyword">const</span> <span class="keywordtype">string</span>&amp; hexString) {</div><div class="line"><a name="l00294"></a><span class="lineno">  294</span>&#160;    <span class="keywordtype">string</span> hex = hexString.substr(2, hexString.size());</div><div class="line"><a name="l00295"></a><span class="lineno">  295</span>&#160;    <span class="keywordflow">return</span> (uint32_t) strtoul(hex.c_str(), <span class="keyword">nullptr</span>, 16);</div><div class="line"><a name="l00296"></a><span class="lineno">  296</span>&#160;}</div><div class="line"><a name="l00297"></a><span class="lineno">  297</span>&#160;</div><div class="line"><a name="l00298"></a><span class="lineno">  298</span>&#160;<span class="comment">/**************************************************************</span></div><div class="line"><a name="l00299"></a><span class="lineno">  299</span>&#160;<span class="comment"> *  Getter / Setter</span></div><div class="line"><a name="l00300"></a><span class="lineno">  300</span>&#160;<span class="comment"> * ***********************************************************/</span></div><div class="line"><a name="l00301"></a><span class="lineno">  301</span>&#160;</div><div class="line"><a name="l00302"></a><span class="lineno">  302</span>&#160;map&lt;uint64_t, std::shared_ptr&lt;DwarfTreeObj&gt;&gt; DwarfParser::getDwarfTree()<span class="keyword"> const </span>{</div><div class="line"><a name="l00303"></a><span class="lineno">  303</span>&#160;    <span class="keywordflow">return</span> dwarfTree;</div><div class="line"><a name="l00304"></a><span class="lineno">  304</span>&#160;}</div><div class="line"><a name="l00305"></a><span class="lineno">  305</span>&#160;</div><div class="line"><a name="l00306"></a><span class="lineno">  306</span>&#160;<span class="keywordtype">void</span> DwarfParser::setElfFilePathName(<span class="keyword">const</span> <span class="keywordtype">string</span> &amp;value) {</div><div class="line"><a name="l00307"></a><span class="lineno">  307</span>&#160;    elfFilePathName = value;</div><div class="line"><a name="l00308"></a><span class="lineno">  308</span>&#160;}</div><div class="line"><a name="l00309"></a><span class="lineno">  309</span>&#160;</div><div class="line"><a name="l00310"></a><span class="lineno">  310</span>&#160;</div><div class="line"><a name="l00311"></a><span class="lineno">  311</span>&#160;</div><div class="line"><a name="l00312"></a><span class="lineno">  312</span>&#160;</div><div class="line"><a name="l00313"></a><span class="lineno">  313</span>&#160;</div><div class="ttc" id="class_dwarf_parser_html_aa18551303cc72fe3eeb52ef00b8c482d"><div class="ttname"><a href="class_dwarf_parser.html#aa18551303cc72fe3eeb52ef00b8c482d">DwarfParser::lookupStructElementsInDwarfTree</a></div><div class="ttdeci">void lookupStructElementsInDwarfTree(DwarfTreeObj &amp;dwarf, uint64_t dwarfKey, int depth)</div><div class="ttdoc">reverse lookup, starting from struct name, set setStructElementsMapKey </div><div class="ttdef"><b>Definition:</b> <a href="dwarfparser_8cpp_source.html#l00137">dwarfparser.cpp:137</a></div></div>
<div class="ttc" id="dwarf_tree_obj_8h_html"><div class="ttname"><a href="dwarf_tree_obj_8h.html">dwarfTreeObj.h</a></div><div class="ttdoc">This class represents a DWARF tree object. </div></div>
<div class="ttc" id="dwarf_parser_8h_html"><div class="ttname"><a href="dwarf_parser_8h.html">dwarfParser.h</a></div><div class="ttdoc">The DWARF tree parser. </div></div>
<div class="ttc" id="class_dwarf_tree_obj_html"><div class="ttname"><a href="class_dwarf_tree_obj.html">DwarfTreeObj</a></div><div class="ttdef"><b>Definition:</b> <a href="dwarf_tree_obj_8h_source.html#l00021">dwarfTreeObj.h:21</a></div></div>
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